Cheapest return flights from Denver to Keflavik in January from 357€

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in January 2026 (see full year).

Return flights

11 Jan - 18 Jan Icelandair direct
04 Jan - 11 Jan Icelandair direct
06 Jan - 13 Jan Icelandair direct
02 Jan - 10 Jan Icelandair direct
07 Jan - 14 Jan British Airways
08 Jan - 15 Jan Lufthansa
12 Jan - 19 Jan British Airways
01 Jan - 08 Jan British Airways
01 Jan - 09 Jan jetBlue
09 Jan - 16 Jan British Airways

Also check the deals for one-way flights from Denver to Keflavik in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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